Respuesta :

Step-by-step explanation:

[tex]2n + 19 = 21[/tex]

[tex]2n = 21 - 19[/tex]

[tex]2n = 2[/tex]

[tex]n = 2 \div 2[/tex]

Therefore, N = 1

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Answer:

n=1

Step-by-step explanation:

to solve this you put 19 on the opposite side and subtract 19 fron 21 because subtraction is the opposite of addition and then you get 2 and then divide 2 by 2 to get 1 so n=1. Yo can check it by doing 2*1=2 then 2+19 =21 so it is the correct answer.